How Many Sets per Week to Build Muscle
"How many sets should I do?" has a less useful answer per session than per week. A muscle trained twice a week for six sets gets the same weekly work as one trained once for twelve, and the weekly total is what the research, and most well-built programs, actually count.
So here is the weekly number, taken from programs rather than opinions: every set written into the 101 programs in the library, added up week by week.
What the library actually prescribes
Across all 101 programs, a training week contains a median of 58 working sets. By level:
- Beginner programs (30 of them): a median of 47 sets a week, ranging from 12 to 73.
- Intermediate programs (52): a median of 60, ranging from 12 to 115.
- Advanced programs (19): a median of 67, ranging from 38 to 130.
By goal, the muscle-building programs sit highest, at an average of 67 sets a week. Strength and fat-loss programs average 57, and general-fitness programs 54.
Inside those weeks, most exercises get three sets. Of the 1,791 exercise prescriptions in the library, 59% are 3 sets, 25% are 4 and 9% are 5. The few prescriptions above six sets are specialised work, such as speed squats and speed benches, a Smolov Jr. bench cycle, kettlebell swings and sprint intervals. None of them is there to add muscle.
What that means per muscle
Weekly totals are spread over the whole body, so the per-muscle number is smaller than it looks. Sixty sets divided across chest, back, shoulders, arms, quads, hamstrings and glutes comes to somewhere around eight to twelve sets per muscle group a week, with the big lifts counting toward more than one group.
That lines up with the research. A 2017 meta-analysis by Schoenfeld, Ogborn and Krieger found that more weekly sets per muscle went with more growth, and that ten or more sets a week produced more growth than fewer than five. Most well-built programs, and most of the ones in the library, land in that range without you having to count.
Why beginners get fewer sets
A beginner grows from almost any consistent work, and the limit is recovery and technique, not volume. Classic 5×5, one of the best-known beginner programs, is 41 sets a week: three exercises of five sets, three days a week, with a single set of deadlifts. It works because the weight goes up every session, not because the volume is high.
Adding sets early mostly adds soreness and time. The cheaper way to progress is the one the program already has: more weight, or more reps at the same weight. Progressive overload covers how that works.
When more sets make sense
Volume becomes the thing to change once the weight stops going up every session, usually after the first six to twelve months. That is why intermediate and advanced programs carry more sets: not because more is better in general, but because it is one of the few levers left.
Add volume carefully:
- Add one or two sets per muscle per week, not ten. Then keep it there for a few weeks and see whether the lifts keep moving.
- Add it where you are behind. Extra sets for a lagging muscle help. Extra sets for everything mostly cost recovery.
- Keep the rests. Twenty sets with rushed rests are not twenty good sets. How long to rest between sets has the numbers.
- Watch the main lifts. If they stall or go backwards after you add volume, you added too much.
When fewer sets are enough
If you train two or three days a week, or only have 45 minutes, a lower-volume program run consistently beats a high-volume one you keep skipping. The library's lowest-volume programs start at 12 sets a week, and a beginner will still make progress on 40.
The number of days you can really train usually decides this more than the number of sets. How many days a week to train covers that trade-off.
FAQ
How many sets per muscle group per week?
Most programs land around eight to twelve per major muscle group, and research supports ten or more for growth once you are past the beginner stage. Beginners grow on less.
Is it better to do more sets or heavier sets?
Early on, heavier: adding weight is the simplest progress there is. Once the weight stops moving every week, adding a set or two per muscle is the next lever.
Do warm-up sets count?
No. The weekly numbers here count working sets only, the ones done at the prescribed weight and reps.
How many sets per exercise?
Three is the default in 59% of the library's prescriptions. Four is common on main lifts; five is mostly heavy low-rep work like 5×5.
Pick a program at your volume
Every program in the library writes out its sets, reps and rests, so you can see the weekly volume before you start. Full Body Starter and Classic 5×5 are free in full and sit around 40 sets a week; Full Body Hypertrophy 4-Day is around 60. Day 1 of any program runs without an account.